| Okehampton & District Funeral Service Limited | Extraterritorial | 2021 |
| Okehampton and District Agricultural Association | Other services | 2009 |
| Okehampton Beds Ltd | Wholesale & retail | 2019 |
| Okehampton Business Improvement District Limited | Other services | 2024 |
| Okehampton Community Kitchen CIC | Wholesale & retail | 2021 |
| Okehampton Computers Ltd | Wholesale & retail | 2023 |
| Okehampton Cycles Limited | Wholesale & retail | 2025 |
| Okehampton Flyers Gym, Trampoline & DMT Club CIC | Arts & recreation | 2019 |
| Okehampton Free Fit Ltd | Wholesale & retail | 2012 |
| Okehampton Funeral Service Limited | Extraterritorial | 2021 |
| Okehampton Golf Club Ltd | Arts & recreation | 2022 |
| Okehampton GUN Limited | Wholesale & retail | 2011 |
| Okehampton Rugby Football Club Limited | Arts & recreation | 2011 |
| Okehampton Skills and Sports Trading Company Limited | Real estate | 2019 |
| Okement Limited | Professional & scientific | 2022 |
| Okement Property Limited | Construction | 2007 |
| Old Chapel Place Okehampton Limited | Households | 2017 |
| Oldmend Limited | Wholesale & retail | 2008 |
| Olivers Outdoors LLP | | 2026 |
| One Touch Solutions (UK) Limited | Construction | 2002 |
| Online Course Accreditation Society Ltd | Education | 2018 |
| Optimus Gyms Ltd | Arts & recreation | 2019 |
| Orange Thief Ltd | Information & communication | 2023 |
| OSH Creative Limited | Professional & scientific | 2019 |
| Otris (UK) Ltd | Administrative & support | 2024 |
| OUR Pitch CIC | Health & social care | 2025 |
| Owen & SON Limited | Construction | 2008 |
| Oxenham Consult Limited | Professional & scientific | 2011 |
| Oxenham Developments Limited | Real estate | 2018 |
| Partnerships Deliver Ltd | Health & social care | 2024 |
| Payne's Grey Films Limited | Information & communication | 2023 |
| Pearce and Simpson Developments Ltd | Real estate | 2026 |
| Peninsula Health Care Training Ltd | Health & social care | 2006 |
| Peninsula Waste Savers Limited | Water & waste | 2005 |
| Perception Marketing (UK) Ltd | Professional & scientific | 2012 |
| Petrolblog Limited | Information & communication | 2012 |
| PH Landscaping Limited | Administrative & support | 2009 |
| Phone Expert Ltd | Wholesale & retail | 2026 |
| PIC of the Pope's Limited | Financial services | 2025 |
| Pift Ltd | Wholesale & retail | 2013 |
| Pizza Plus Catering Limited | Hospitality | 2024 |
| Pjmc Group Ltd | Wholesale & retail | 2023 |
| Plant Tech South West Limited | Manufacturing | 2018 |
| PNC Consultants Ltd | Professional & scientific | 2017 |
| Pool for Paws Ltd | Other services | 2024 |
| POP Lifestyle Homes Limited | Real estate | 2023 |
| Posh Limited | Extraterritorial | 2005 |
| Posh Paint and Interiors Limited | Wholesale & retail | 2003 |
| Poshfabric Limited | Extraterritorial | 2006 |
| Poshwallpaper Limited | Extraterritorial | 2006 |
| Poyner & Jones Ltd | Health & social care | 2021 |
| Ppgm Consultants Limited | Information & communication | 2012 |
| Preerp Ltd | Professional & scientific | 2020 |
| Preference Travel Limited | Administrative & support | 2001 |
| Prestige Developments (SW) Limited | Construction | 2021 |
| Primary Sports and Education (South and West Devon) Ltd | Education | 2022 |
| Prism Management Consultants Limited | Professional & scientific | 2010 |
| Profitable Property Partnerships Limited | Real estate | 2000 |
| Property Maintenance & Improvement Group Ltd | Construction | 2026 |
| Pulse HQ Limited | Information & communication | 2025 |
| Pynto Limited | Information & communication | 2002 |
| Pyxides Limited | Professional & scientific | 2017 |
| Q Heating and Plumbing SW Ltd | Construction | 2019 |
| QD Examiners Limited | Professional & scientific | 2026 |
| Qedg Group Limited | Arts & recreation | 2003 |
| Qedg Holdings Limited | Financial services | 2024 |
| Qedg Promotions Limited | Other services | 2002 |
| Quantum Cryogenics Limited | Financial services | 2003 |
| Quantum Cryotherapy Ltd | Administrative & support | 2017 |
| Quantum Production Limited | Manufacturing | 1981 |
| Quarry Farm Management Company Limited | Households | 2006 |
| Quinns Hairdressing Limited | Other services | 1996 |
| Qwertyword Ltd | Wholesale & retail | 2006 |
| R & J O'Neill Enterprises Ltd | Agriculture & fishing | 2017 |
| R J Vending Limited | Wholesale & retail | 2002 |
| R&B Industries Ltd | Construction | 2023 |
| R.P. Cunningham & Co Limited | Construction | 1978 |
| Rajpoot (OKE) Ltd | Hospitality | 2013 |
| Ranches Limited | Agriculture & fishing | 1957 |
| Rathkenny Hydrotherapy and Rehab Ltd | Arts & recreation | 2025 |
| Rathkenny Livery Limited | Agriculture & fishing | 2023 |
| Ratiohand Holdings Ltd | Financial services | 2008 |
| Ratiohand Limited | Real estate | 1985 |
| Ravac Automotive Ltd | Wholesale & retail | 2025 |
| Ravenfield Flooring Limited | Construction | 2024 |
| Raymont Retail Limited | Wholesale & retail | 2022 |
| RB Reps Ltd | Administrative & support | 2007 |
| Rebecca Mitchell Surveyors Limited | Professional & scientific | 2025 |
| Red Arrow IT Limited | Information & communication | 2007 |
| Red Kite Day Limited | Administrative & support | 2018 |
| Reddicliffes Residents Association Limited | Real estate | 2004 |
| Redguard Building Solutions Ltd | Professional & scientific | 2025 |
| Refurb X Ltd | Wholesale & retail | 2025 |
| Reggie & Blue Properties Ltd | Real estate | 2022 |
| Relic Salvage Limited | Wholesale & retail | 2021 |
| Rest Easy Renovations Ltd | Professional & scientific | 2026 |
| Restoration Tradesmen Limited | Wholesale & retail | 2025 |
| Revm Ltd | Other services | 2016 |
| Reynolds Barn Ltd | Hospitality | 1996 |
| Rgcd.Dev Ltd | Arts & recreation | 2014 |